High manufacturer quality steel sieves for sorting rough and polished diamonds. The HT series is available in 2 different diameters: 66 and 80 mm and two different plates combination, that is 42 or 74 plates.
Sieves are very useful to speed up and optimize stones selection. The set comes with sieve plates, two caps and two half cylinders paired and fits into an elegant double tone blue and black case with strap closure.
The cylinders are built to hold plates inside, to sift gemstones. By overlapping the two half cylinders provided and putting one plate in each, the process will be sped up getting a double measure sifting simultaneously.
This item is 80 mm diameter and is filled with 74 plates: full numbers plates from 0 to 20, half and quarter measure plates, including 00, 000 and 0000 plates, as well. Plate holes sizes are expressed in millimeters, accuracy within 10% assuming good make and full cuts.
Plates combination:
0000 – 0,85 – 000 – 0,95 – 00 – 1,05 – 0 – 1,125 – 1 – 1¼ – 1½ – 1¾ – 2 – 2¼ – 2½ – 2¾ – 3 – 3¼ – 3½ – 3¾ – 4 – 4¼ – 4½ – 4¾ – 5 – 5¼ – 5½ – 5¾ – 6 – 6¼ – 6½ – 6¾ – 7 – 7¼ – 7½ – 7¾ – 8 – 8¼ – 8½ – 8¾ – 9 – 9¼ – 9½ – 9¾ – 10 – 10¼ – 10½ – 10¾ – 11 – 11¼ – 11½ – 11¾ – 12 – 12¼ – 12½ – 12¾ – 13 – 13¼ – 13½ – 13¾ – 14 – 14¼ – 14½ – 14¾ – 15 – 15½ – 16 – 16½ – 17 – 17½ – 18 – 18½ – 19 – 19½ – 20.
| Technical specifications | |
|---|---|
| Diameter | ⌀ 80 mm |
| Plates quantity | 75 plates |
| Plates combination | 0000 – 000½ – 000 – 00½ – 00 – 0½ – 0 – 1 – 1¼ – 1½ – 1¾ – 2 – 2¼ – 2½ – 2¾ – 3 – 3¼ – 3½ – 3¾ – 4 – 4¼ – 4½ – 4¾ – 5 – 5¼ – 5½ – 5¾ – 6 – 6¼ – 6½ – 6¾ – 7 – 7¼ – 7½ – 7¾ – 8 – 8¼ – 8½ – 8¾ – 9 – 9¼ – 9½ – 9¾ – 10 – 10¼ – 10½ – 10¾ – 11 – 11¼ – 11½ – 11¾ – 12 – 12¼ – 12½ – 12¾ – 13 – 13¼ – 13½ – 13¾ – 14 – 14¼ – 14½ – 14¾ – 15 – 15½ – 16 – 16½ – 17 – 17½ – 18 – 18½ – 19 – 19½ – 20 |
| Weight | 1230.3 g |
